Hyundai: Engine D4FA. Manual — part 126
DIESEL CONTROL SYSTEM
FLA -375
85
87
86
30
EGNG010F
4)
Is the measured resistance within the specification?
YES
▶ Go to "2. Check main relay component operation" as follows.
NO
▶ Replace main relay and go to "Verification of Vehicle Repair".
2.
Check main relay component operation
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect main relay.
3)
Supplies random B+ and ground to coil sides of main relay. ( terminal 85, terminal 86)
4)
Check continuity between main relay component terminal 30 and 87.
specification : When power is supplied : Continuity ( below 1.0Ω )
When power is not supplied : Discontinuity ( Infinite Ω )
B+
85
87
86
30
EGNG010G
5)
Is the continuity test within the specification?
YES
▶ go to "Verification of Vehicle Repair".
NO
▶ Replace main relay and go to "Verification of Vehicle Repair".
※ Repeat this process 2~3 times.
FLA -376
FUEL SYSTEM
VERIFICATION OF VEHICLE REPAIR
EB016D4C
After a repair, it is essential to verify that the fault is corrected.
1.
After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.
2.
Clear recorded DTC using Scantool.
3.
Drive the vehicle within DTC "Enable conditions" in "General information".
4.
After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.
5.
Are any DTCs recorded ?
YES
▶ Go to the DTC guide of recorded NO. in Scantool.
NO
▶ System operates within specification.
DIESEL CONTROL SYSTEM
FLA -377
DTC P0698 SENSOR REFERENCE VOLTAGE "C" CIRCUIT LOW
COMPONENT LOCATION
E14C1C71
ECM
EGNG007T
GENERAL DESCRIPTION
EAE27187
ECM is activated by power supply. Signals from several sensors, such as CKPS and APS, is inputted to ECM. Comparing
inputted siganals with control LOGIC saved at micro controller and EEPROM, ECM controlls engine as actuating injectors,
solenoids and relays. To guarantee accurate control, ECM performs SELF TEST, DIAGNOSIS of several sensors and
actuators. And if serious trouble which affects vehicle performance occurrs, ECM sets DTCs.At certain cases, ECM shuts
down whole systems in order to prevent dangerous situation due to incorrect control.
DTC DESCRIPTION
E48A79CD
P0698 is set when the voltage below 4700mV - minimum voltage of sensor power supply 3 generates from ECM - is
detected for more than 0.1 sec.. This code is due to the short to ground in sensor power circuit or the voltage problem
inside of ECM.
DTC DETECTING CONDITION
E4D0E123
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
ThresholdValue
• when the voltage is below the minimum voltage
of sensor power supply.
( below 4700mV )
DiagnosticTime
• 100ms
Fuel Cut
NO
EGR Off
NO
Fuel Limit
YES
Fail Safe
MIL
NO
• Limp home mode is
activated. (engine speed is
fixed at 1200RPM. )
• A/C pressure transducer
power supply circuit
• variable swirl control actuator
power supply circuit
• ECM component
FLA -378
FUEL SYSTEM
SPECIFICATION
E3C24ADA
Sensor power 1
Sensor power 2
Sensor power 3
MAFS, APS 1
4830mV~5158mV
RPS, APS 2,BPS
4830mV~5158mV
A/C pressure transducer,
VSA position Sensor
4830mV~5158mV
SCHEMATIC DIAGRAM
E77CE18F
1
2
3
C101-2 terminal 12
C101-2 terminal 22
Sensor ground
Sensor signal
Sensor power
C101-2 terminal 13
C147 Variable swirl control actuator
E08 A/C pressure transducer
C101-2 ECM
C101-1 ECM
1
30 29
31
32
38
39
36
37
35
33
34
40
42 41
46 45 44 43
48 47
50 49
2
3
4
6
5
8
7
12 11 10 9
13
14
15
18 17
19
16
22
25
27 26
23
20
21
24
28
51
75 74
53 52
73
79 78 77 76
80
81
83 82
84
86 85
87
89 88
90
92 91
93
94
57
69 68
70
71
64
54
55
56
61
58
59
60
63 62
65
66
67
72
E08 A/C pressure transducer
22. A/C pressure transducer
power 5V
C101-2
C101-1
ECM
[E08 A/C Refrigerant Pressure Sensor]
1
2
3
4
C101-1 terminal 60
C101-1 terminal 26
MTR (+)
MTR (-)
Sensor power
Sensor signal
C101-1 terminal 30
C101-1 terminal 56
5
Sensor ground
C101-1 terminal 6
[C147 Variable swirl control actuator]
26. Variable swirl control actuator
position sensor power 5V
3
3
C147 Variable swirl control actuator
1
2
3
4
5
1
2
3
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTOR INFORMATION]
Terminal
Terminal
Connected to
Connected to
Function
Terminal
Terminal
Connected to
Function
1
2
4
3
6
5
8 7
12
13
16
17
18
23 22
20
21
19
27 26 25 24
28
29
30
14
9
10
11
15
33 32 31
34
37
41
42
40 39 38
35
36
43
44
47 46
49 48
50
53
56
58 57
54
51
52
55
59
60
45
EGNG001W
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